Trimethyl dihydroquinoline

Plasticiser/oil in rubber is usually determined by solvent extraction (ISO 1407) and FTIR identification [57] TGA can usually provide good quantifications of plasticiser contents. Antidegradants in rubber compounds may be determined by HS-GC-MS for volatile species (e.g. BHT, IPPD), but usually solvent extraction is required, followed by GC-MS, HPLC, UV or DP-MS analysis. Since cross-linked rubbers are insoluble, more complex extraction procedures must be carried out. The determination of antioxidants in rubbers by means of HPLC and TLC has been reviewed [58], The TLC technique for antidegradants in rubbers is described in ASTM D 3156 and ISO 4645.2 (1984). Direct probe EIMS was also used to analyse antioxidants (hindered phenols and aromatic amines) in rubber extracts [59]. ISO 11089 (1997) deals with the determination of /V-phenyl-/9-naphthylamine and poly-2,2,4-trimethyl-1,2-dihydroquinoline (TMDQ) as well as other generic types of antiozonants such as IV-alkyl-AL-phenyl-p-phenylenediamines (e.g. IPPD and 6PPD) and A-aryl-AL-aryl-p-phenylenediamines (e.g. DPPD), by means of HPLC. 

Oxidation of julolidine with peroxyacetic acid (at pH 4.8) has been reported124 to give bis-9,9 -julolidyl (105) by oxidative coupling of the benzene ring. A similar oxidative dimer was formed125 when the isolable 4-bromomethylene compound, produced by bromination of 2,2,4-trimethyl- 1,2-dihydroquinoline in chloroform, was allowed to react with bromine in the same solvent. 

Dicyclopentadiene was used as another difunctional agent for the synthesis of an oligomeric AO from 4-methylphenol [120] (after tert-butylation, AO 99 was obtained) or diphenylamine [121]. Polymeric aromatic amines for application in rubber stabilization were obtained in the presence of acid catalysts from diphenylamine and l,4-bis(l-hydroxy-l-methylethyl)benzene or 1,4-diisopropylbenzene [122] or from iV,A -diphenyl-l,4-phenylenediamine and a,to-p-xylylenedi-chloride [123]. Polymerization of 2,2,4-trimethyl-1,2-dihydroquinoline in the presence of protic or Lewis adds [1] is very important commerdally. Oligomeric product 100 is an effective AO and AF agent for rubbers. 

Also, antioxidants were found to decrease the aging rate of natural rubber. Among the antioxidants more frequently used are N-phenyl-p-naphthylamine, 2,6-di-tert-butyl-4-methyl-1-hydroxybenzene (BHT), N-isopropyl-N -phenyl-p-phenylenediamine, N-(1,3-dimethylbutyl)-N -p-phenylenediamine, and poly-(2,2,4-trimethyl-1,2-dihydroquinoline). 

Polymerized 1,2-dihydro-2,4,4-trimethyl quinoline. See 2,2,4-Trimethyl-1,2-dihydroquinoline polymer... 

Synonyms 1,2-Dihydro-2,2,4-trimethylquinoline homopolymer 1,2-Dihydro-2,2,4-trimethylquinoline polymer Poly-(1,2-dihydro-2,2,4-trimethylquinoline) Polymerized 1,2-dihydro-2,4,4-trimethyl quinoline Polymerized 2,2,4-trimethyl-1,2-dihydroquinoline TDQP TMDHQ TMQ Trimethyidihydroquinoline polymer 2,2,4-Trimethyl-1,2-dihydro-quinoline, polymeric Classification Dihydroquinoline Empirical (C H, N) ... 

Akrochem Antioxidant 1076. See Octadecyl 3,5-di-t-butyl-4-hydroxyhydrocinnamate Akrochem Antioxidant BHT. See BHT Akrochem Antioxidant DQ, Akrochem Antioxidant DQ-H. See 2,2,4-Trimethyl-1,2-dihydroquinoline polymer Akrochem Antioxidant PANA. See Phenyl-a-naphthylamine... 

Dodecyldihydrofuran-2(3H)-one. See 3-Dodecyldihydrofuranone 6-Dodecyl-1,2-dihydro-2,2,4-trimethylquinoline. See 6-Dodecyl-2,2,4-trimethyl-1,2-dihydroquinoline... 

Flectol H. See 2,2,4-Trimethyl-l, 2-dihydroquinoline polymer Flectol ODP. See p,p -Dioctyldiphenylamine Flectol TMQ. See 2,2,4-Trimethyl-1,2-dihydroquinoline polymer Fleetquest 8800. See Anthraquinone Fleshing grease, sulfated sodium salt. See Sodium tallow sulfate Flexalloy. See Polyvinyl chloride Flexan 130. See Sodium polystyrene sulfonate Flexathene TP 1300-HC, Flexathene TP 4300-HR, Flexathene TP 4390-HU. See Propylene/ethylene copolymer Flexbond 20, Flexbond 25, Flexbond 28, Flexbond 28S. See Acrylic resin Flexbond 149, Flexbond 150, Flexbond 153, Flexbond 165. See Polyvinyl acetate Flexbond 274, Flexbond 277, Flexbond 289. See Acrylic resin... 

Octolite 628. See Dilauryl thiodipropionate Octolite 647. See 2,2,4-Trimethyl-1,2-dihydroquinoline polymer Octolite 682. See Styrenated diphenylamine Octolite WL. See p-Cresol/dicyclopentadiene butylated reaction product Octomer DBM. See Dibutyl maleate Octomer DIBM. See Diisobutyl maleate Octomer DIOM. See Diisooctyl maleate Octomer DOM. See Dioctyl maleate Octopirox . See Piroctone olamine Octopoi NB-47. See Sodium di-n-butyl dithiocarbamate Octopoi SBZ-20. See Sodium dibenzyidithiocarbamate Octopoi SDB-50. See Sodium di-n-butyl dithiocarbamate Octopoi SDE-25. See Sodium diethyidithiocarbamate Octopoi SDM-40. See Sodium dimethyidithiocarbamate Octosol 449. See Potassium oleate Octosol 474. See Steartrimonium chloride Octosol 562] Octosol 571. See Laurtrimonium chloride... 

Trimethyl-1,2-dihydroquinoline polymer Poly (dimethylamine-co-epichlorohydrin). See Dimethylamine/epichlorohydrin copolymer Poly (dimethylamine-co-epichlorohydrin-co-ethylenediamine). See... 

Polymerized rosin. See Rosin, polymerized Polymerized siloxane. See Silicone Polymerized 2,2,4-trimethyl-1,2-dihydroquinoline. See 2,2,4-Trimethyl-l, 2-dihydroquinoline polymer Polymethacrylamidopropyl trimonium chloride CAS 68039-13-4... 

Prodox 340. See 6-t-Butyl-2,4-xylenol Prodox 500. See 2,6-Di-t-butyl-4-ethyl phenol Prodox 640. See 2-t-Butyl-p-cresol Prodox 641. See 6-t-Butyl-m-cresol Prodox 1076. See Octadecyl 3,5-di-t-butyl-4-hydroxyhydrocinnamate Prodox 3114. See Tris (3,5-di-t-butyl-4-hydroxybenzyl) isocyanurate Prodox CB-603. See Carbon black Prodox RD. See 2,2,4-Trimethyl-1,2-dihydroquinoline polymer Prodox SCR. See 4,4 -Thiobis-6-(t-butyl-m-cresol)... 

Raiox TMQ-G] Raiox TMQ-H] Raiox TMQ-R, Raiox TMQ-T. See 2,2,4-Trimethyl-1,2-dihydroquinoline polymer Raiufon 414. See Cocamidopropyl betaine Raiufon AC 528. See (Z)-N-(2-Aminoethyl-N -(2-(2-(8-heptadecenyl)-4,5-dihydro-1H-imidaz6l-1-yl) ethyl) ethylenediamine Raiufon CA. See N,N-Dimethyl-N-lauric acid-amidopropyl-N-(3-sulfopropyl)-ammonium betaine... 

Struktoi T.M.Q. Powd.] Struktoi T.M.Q.. See 2,2,4-Trimethyl-1,2-dihydroquinoline polymer Struktoi TR121. See Oleamide Struktoi TR 131. See Erucamide Struktoi TR 354. See Carbon black Struktoi ZEH. See Zinc 2-ethylhexanoate Struktoi Zinc Stearate. See Zinc stearate Struktoi ZP1014. See Zinc peroxide Struvite. See Magnesium ammonium phosphate, hexahydrate Strychnidin-10-one, 2,3-dimethoxy- Strychnine, 2,3-dimethoxy-. See Brucine STS. See Sodium toluenesulfonate Sorbitan tri stearate... 

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